Rinnai V65i Tankless Water Heater

With Rinnai Tankless Water Heaters, homeowners can now have more hot water than they ever thought possible.

The innovation behind Rinnai Tankless Water Heaters provides an endless supply of hot water wherever and whenever it’s needed—even for multiple tasks at the same time.

Because they operate on an as-needed basis, Rinnai Tankless Water Heaters can use up to 40 percent* less energy than traditional systems, which helps reduce utility costs and can contribute to a favorable HERS rating and optimize LEED certification.

On top of efficiency, our tankless water heaters feature a copper heat exchanger for unparalleled quality, durability and safety. And their compact design offers substantial space savings in the home.

The flexibility and convenience of an endless supply of hot water. The reliability of proven engineering. It’s everything homeowners need to feel comfortable.

* As based on the average cost to run an electric tank water heater per the DOE Average Energy Costs (www.doe.gov).

Tankless Wi-Fi ready technology that saves you time.

Never think about your hot water needs again: Innovative technology provides an endless supply of hot water whenever and wherever it’s needed – even for simultaneous uses at multiple fixtures. Showers and baths? Absolutely. Laundry and dishes? No problem. Prioritizing activities and scheduling hot water use is a thing of the past. And with the introduction of Wi-Fi connectivity, new and existing Rinnai Residential and Commercial Tankless Water Heaters can now be remotely monitored and controlled via smart devices, providing never-before-available options for water heating management, control and maintenance.

Save money, splurge on performance.

Designed for efficiency: Rinnai’s tankless technology features copper heat exchangers to provide maximum efficiency and uses up to 40 percent less energy* than a traditional tank.

Save energy: By operating only when hot water is needed, and no storage tank to heat and reheat water, our tankless technology helps save on energy and utility costs. The use of an electronic ignition means no standing pilot light that constantly uses energy.

A smart investment: Increase your home’s value with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score and optimized LEED certification. Available energy efficiency rebates and tax credits offer the opportunity to help make your purchases more affordable.

Multiple sizes: Rinnai gives you options to right-size your installation and customize your efficiency.

Replace parts, not systems: Every part of a Rinnai Tankless Water Heater is replaceable. Components can be easily exchanged, if needed, versus replacing the entire system.

Save space with a compact design.

Maximum output, minimum space: About the size of a small suitcase at 18.5” x 26” x 10” or smaller, these wall-mounted models can be installed on interior or exterior walls and in compact spaces to free up valuable space.

Flexible installation: Small size allows for installation in nontraditional spaces such as crawl spaces and attics, making it perfect for use in any size home, including manufactured and modular homes.

Stay green with a sustainable choice.

Earth-friendly efficiency: Our tankless technology achieves maximum energy efficiency, helping to conserve natural resources.

Less waste: Compact heat exchanger design, longer product lifespan up to twice as long as a traditional tank** and recyclable parts means less waste in landfills.

High standards for low emissions: Lower CO2 emissions contribute to cleaner air and a healthier environment.

* As based on the average cost to run an electric tank water heater per the DOE Average Energy Costs (doe.gov).
** Based on DOE ENERGY STAR® lifecycle estimates.

What is a Rinnai Tankless Water Heater?

Value Series


The Value Series is the perfect combination of comfort and value. These easy-to-install, compact models combine all the reliability you’d expect from Rinnai with performance that’s ideal for medium- to smaller-sized new homes or remodels.


  • Energy Factor of up to .82
  • Available sizes: 120,000, 150,000, 180,000, 192,000, and 199,000 BTU
  • A practical alternative water heating choice for homes with smaller demands
  • Wi-Fi Ready